Immersing himself in his work as a surgeon for the London Metropolitan Police to ward off memories of his time as an army medic, Dr. Harry Kent is sent to treat a mentally ill teen who has taken hostages in a fast-food restaurant. When Solomon's life is put in danger again at a critical care ward, it becomes clear he knows something people will kill to protect. Determined to uncover the secret that drove the boy to such desperate action, Harry soon...